Machine for cleansing and separating road-making material.



PA'TENTED'SBIT. 6, 1904.

1 J. JFEVERSON. v v MACHINE-FOR CLEANSING AND EPARATING ROAD MAKINGMATERIAL.

APPLICATION FILED APR. 5. 1904.

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' APPLICATION FILED APR. 5'. 1904.

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'No. 769,156. PATENTED SEPT. 6, 1904. J. J. EVERSON.

MACHINE FOR CLEANSING AND SEPARATING ROAD MAKING MATERIAL. APPLICATIONFILED APR. 6. 1904. no tomm. 4 SHEETS-SHEET 3.

WIT EIEVS-EE: A A I I TEI N 6 6% yhzls-flfij No. 769,156. 7 PATENTEDSEPT. 6," 1904. J. J. EVERSON.

MACHINE FOR CLEANSING AND SEPARATING ROAD MAKING MATERIAL.

I 7 APPLICATION FILED nn. 5, 1904. v Nb MODEL. 4 SHEETS-SHEET 4.

UNITED STATES PATENT OFFICE.

Patented September 6, 1904. A

JOHN J. EVERSON, ()F NEWTON, MASSACHUSETTS.

MACHINE FOR CLEANSING AND SEPARATING ROAD-MAKING MATERIAL.

SPECIFICATION forming part of Letters Patent No. 769,156, dated.September 6, 1904..

Application fil d April 5, 1904. Serial No. 201,626. (No model.)

To all whom it may concern:

Be it known thatI, JOHN J. EVERSON, a citizen of the United States,residingin Newton, in the county of Middlesex and State ofMassachusetts, have invented new and useful Improvements in Machines forCleansing and Separating Road-Making Material, of which the following isa specification.

This machine is particularly adapted for receiving, cleansing,separating, and discharging road-making material which has already beenin use-as for example, the material in a macadamized road which hasbecome worn and requires to be repaired.

This invention has for its object to provide in an improved machine(which is adapted to move along the road by traction in the ordinarymanner) mechanism whereby the material from the road-bed is received andconveyed to a bucket elevator, is lifted by said elevator and deliveredthrough a hopper into a revolving drum and conveyed by gravity into arevolving screen, which separates the smaller stones, sand, mud,and'water from the large stones and delivers them through a spout into acar, from which the mud and water can run off into a settling-trough,while the larger stones are conducted into a separate hopper and spoutedinto the street to be used on the road-bed. The smaller stones and sandare removed and used for sidewalk-laying, road-building, &c. 7

- The nature of the invention is fully described below and illustratedin the accompanying drawings, in which Figure 1 is aplan view of atraction-vehicle provided with mechanism embodying my invention. Fig. 2is. a side elevation of the same, a gas-engine being illustrateddiagrammatically in position and a portion of a waterfeed being alsoillustrated. Fig. 3 is an elevation looking from the left. Fig. 4 is across vertical section of the car and trough below described. Fig. 5 isa sectional View illustrating the drum, the screen, and the adjacenthoppers. Fig. 6 is a section taken on line 6, Fig. 5. Fig. 7 is a planviewof aportion of the drum, illustrating its operating mechanism. 1

Similar characters of reference indicate corresponding parts.

The frame of the vehicle comprlses the lower side rails 1, the lowercross-bars 2, the

upper side rails 3, the upper cross-bars 4, the four corner-posts 5, andthe braces 6. This frame is intended to sustain a steam-engine I orother suitable motor and is supported by driving-wheels 7 and forwardwheels 8, the

shaft 9 of thedriving-wheels being provided with a gear-wheel 10, Fig.2,adapted to engage a gear 11 on a suitable counter-shaft mounted on theframe, said counter-shaft having mounted on it a pulley 12, which isconnected by a'belt 13 with a suitablepulley on the driving-shaft 14,said pulley not being illustrated in .the drawings, but being behind thepulley 40, below described. The traction mechanism and itsconnectionswith an ordinary motor make no part of the invention.

connected by'a cord-and-pulley mechanism 20 with a bracket 21, securedto the frame of the machine or vehicle, whereby the bars 16 may beraised and lowered. These bars sustain and are connected by pairs ofhorizontal rollers 22, the rollers in each pair being arranged one abovetheother. The inner ends of these bars are hinged at 23 to a pair ofsimilar but shorter bars 24, disposed at an upward incline and supportedby hangers 25, extending down from the portion 1 of the frame, said bars24 also supporting rollers 22. The two sets of bars 16 and 24,sustain anendless belt 26, said belt extending over and around a pulley or roll27, supported by the outer ends of the bars 16, and the pulley or roll28 between and at the inner ends of -.the

or guards 30, supported by small brackets 31,

secured to the bars 16 and 24. The shaft 29 is supported by brackets orhangers 32 and has mounted on it a pulley 33, which is connected by abelt 34 with a pulley 35, Fig. 1, on the shaft 36, supported by thebrackets or hangers 37, secured to the top rails 3. the same shaft 36there is mounted a pulley 38, Fig. 1, which is connected by a belt 39 Iwith the pulley 40 on the driving-shaft 14, said driving-shaft beingprovided with a suitable pulley 41, Fig. 1, which can be connected by abelt 100 with a gas-engine or other motor, (illustrated diagrammaticallyat 101,) and thus transmit motion not only to the endless belt 26, butto the traction-wheels 7.

42 represents a pair of inclined bars supported near their upper endsloosely on the horizontal shaft 43, sustained by the bars 3, and towardits lower end by a rod 44, supported by the lower bars 1. Mounted on theshaft 43 is a pulley 45, which is connected by a belt 46 with the pulley47 on the shaft 36, said shaft 36 being, as above mentioned, connectedby the pulley 38, belt 39, and pulley 40 with the driving-shaft 14. Thebars 42 constitute an inclined frame reaching down to and slightly underthe inner ends of the bars 24 and supporting at their opposite endsrollers 49 and 50, the roller 49 being fast on the shaft 43. Aroundthese rollers there is disposed a bucket elevator 51, which is actuatedby the shaft 43. The upper end of this elevator extends over the mouthof a hopper 52, Figs. 1, 2, and 5, supported by the frame and moreparticularly by a cross-bar 53. The larger mouth of this hopper facesthe upper end of the bucket elevator, and the smaller mouth extends intoasuitable central opening 54 in the wall 55 of an inclined cylindricaldrum 56. This drum is provided with the annular raised bearing-surface57, which rests on rolls 58, Figs. 5, 6, and 7, supported by brackets59, sustained bya cross-bar 60. These rolls 58 are provided with annularflanges 61, which overlap one edge of the annular raised surface 57,whereby the main portion 58 of the rolls provides a bearing for the part57 between the said flanges 61 and an annular gear 62, extending fromthe portion 57 next its opposite edge. The cross-bar makes a part of aframe, preferably of metal, which comprises the two inclined parallelbars 66, bolted to the upper and lower rails 3 and 1 and set at rightangles to the axis of rotation of the drum 56. The gear 62 is engaged bya gear-wheel 63 on the bevel-gear 64, actuated by the horizontal shaft65, having bearings in a box 67, supported by one of the bars 66,saidshaft 65 having mounted on it a pulley 68, which is connected by abelt 69, Figs. 1 and 2, with a pulley on the shaft 14. Small rollers 71,Figs. 1, 6, and v7, are mounted on studs 72, having bearings in boxes73, supported by brackets 74 on the frame 66, said rollers bearingagainst one face of the gear 62 l and, in connection with the flanges61, operat- 1 ing to confine the drum to the rotative movej mentcommunicated by means of the pulleys 68 and 70, bevel-gear 64, and gear62 and prevent side or endwise movement.

I The drum 56 is provided on its inner surl face with longitudinalradial shelves 75, the object of which is below described, and the endwall 76 has a central opening 77, as shown in Fig. 5. 78 is a tubularand cylindrical screen provided with numerous perforations and open atboth ends. One end of this screen is pressed over the lower end of thedrum 56, and the other end is provided with a spider 79, whose tubularhub 80 is keyed to a shaft 81, which is adapted to rotate in a suitablebox 82. Directly under this screen is a hopper 84, provided with adownwardly-extending pipe 85, which may be of stiff or flexiblematerial, as desired, and under the lower end or mouth of this screen isanother hopper 86, provided with a flexible and flexibly-mountedoutlettube 87. These hoppers maybe distinct or may consist of twochambers in one construction and preferably extend across the frame fromone rail, 3, to the other, as illustrated in Fig. 1.

In connection with the machine proper that is to say, the apparatusabove described and supported by or contained in the traction-vehicie-there is used in practice a car which is intended to rest on thesidewalk 88 and to be moved as the apparatus is propelled in order to bein position under the lower end of the pipe 85. This car comprises aframe 89 and a receptacle or hopper 90, supported thereby, said hopperbeing open at its upper end and preferably wider at its mouth than atthe bottom. This hopper is pivotally supported in the frame 89, asillustrated in Figs. 2, 3, and 4, by means of pivots 91, and one of thevertical sides of the hopper or receptaclenamely, the side facing themain machine is provided with a vertical opening 92, having verticalgrooves 93 in its opposite edges, said opening being flanked on bothsides by vertical boards 94, extending outward at right angles onopposite sides of the pivot 91, said boards serving to guide thematerial from the interior of the receptacle 90 into alongitudinally-placed trough 96. Sliding within these grooves 93 arehorizontal removable boards 95,0ver which the contents of the receptacle9O flow into the trough 96. This trough is very long, frequentl yonehundred to two hundred feet and is intended to be stationary on thesidewalk near its edge or on the street next the curb and to reach atleast to the next catch-basin or seweropening and is provided with avertical outlet 97, having vertical grooves 98, in which are removableboards 99, similar to the construction above described in the trough 90.

The practical operation of the machine is as follows: The machine ispropelled by any desired power to a road containing available materialto be cleansed and separated, such as macadam which has become more or.less worn and needs-repairing. The machine having been brought to astop, the long trough connected to the engine the stones, &c., are

conveyed by the belt between the guards 3O horizontally to the end ofthe bars 16 and then in an upward incline to the bucket elevator 51,said conveyer having been operated by means of the pulley 28, belt 34,pulley 35, shaft 36, pulley 38, and the driving-shaft 14, on'which ismounted the driving-pulley 41. The stones, sand, &c., are transferred bythe conveyer 26 to the bucket elevator 51, which is operated by theroller 49, shaft 43, pulley 45, belt 46, pulley 47, shaft 36, belt 39,and pulley 40 on the driving-shaft 14. The buckets on the elevatordeliver the material into the hopper 52, which conducts it into the drum56, which is rotated on an inclined plane by means of the gear 62, 63,and 64, the stud 65,

pulley 68, belt 69, and pulley on the driv.

ing-shaft 14. Water is conducted through a hose 102, Fig. 1, or othermeans into this drum through the hopper 52, and the rotation of the drumcauses the water, sand, and stones to become thoroughly rolled andshaken up, the shelves acting as agitators and successively carrying thematerial partly to the top of the drum and then dropping-it, whereby thestones are thoroughly washed and loosened from the dirt and sand. Thematerial then passes by gravity through the opening 7 6 into the screen7 8, which rotates with the drum and is also set on an incline. Thesmaller stones, sand, mud, and water pass through the perforations inthe screen into the hopper 84 and are conducted through the pipe 85 intothe receptacle orcar 90. The larger stones pass by gravity from thescreen into the hopper 86 and through the flexible spout 87 onto theroad-bed. The mud and water which are conducted to the receptacle or car90 flow throughthe passage 92 over the top board or slat 95 into thetrough 96. These boards or slats 95 are put in place one by one as thecar fills in order to bar the sand and small stones and prevent themfrom passing through the passage 92 into-the trough. The sand and smallstones remaining in the receptacle 90 can be removed at convenience andused for sidewalk-building, cc. in the trough operate to allow the mudto settle, while the water passes off into catch-basins or elsewhere, asdesired.

The object of makingthe pipe 87 flexible is to enable it to be swungfrom side to side, and thus spread the stones on the road as the machinemoves along.

The slats or gates 99 This traction-vehicle is movedas-desired, therebeing suitable clutches or equivalents thereof between thetraction-wheels and the engine whereby the power may be applied tothetraction-wheels whenever necessary. This, however, makes no part of. theinvention and is not illustrated. When the machine is operating in themanner above described in receiving, cleansing, separating, anddischarglng road-making material, the vehicle is stationary. When thevehicle is moved to an- 1 other point-in the road, the car or receptacle90 is carried or drawn to a proper point for receiving the material fromthe pipe 85. The trough, however, remains stationary, as it is verylong, until the road-bed for the entire length of the trough has beenoperated upon. Thus when a road-bed becomes worn, and especially amacadamized road-bed, the material is shoveled or dumped upon theconveyer 26, carried to the bucket elevator, dropped into the hopper 52,and, together withastream of water, thereby transferred to the rotatingdrum 56, tossed about and cleansed therein and transferred to the screen78, from which screen the larger stonesthat is, such as are availablefor roadmaking-arc spouted out onto the road, and the smaller stones,sand, mud, and water are conducted to the car or receptacle 90, fromwhich the mudand water flow out into the trough 96. The sand and smallerstones remaining in the car are thus separated and rendered availablefor top layers for road-building, sidewalk-building, or other purposes.The mud in the trough settles to the bottom, and the water therein isconducted to the nearest catch-basin.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a machine of the character described, the inclined framecomprising the bars supported by the frame of the-machine and extendingdownward and rearward therefrom, the guards, and rollers between saidguards; the swinging frame comprising the normally horizontal bars, theguards, and rollers between said guards, the inner end of this framebeing hinged to the said inclined frame; the conveying-belt extendingbetween the bars in the swinging frame and the bars .in the inclinedframe; mechanism for imparting movement to said conveying-belt;mechanism for lifting and lowering the swinging frame; an elevatorsupported by the machine, and with its buckets moving upward from theinner ends of the bars included in the inclined frame; a rotaryagitating and washing drum supported by the frame of the machine; and aseparating-screen opening into said drum, for the-purpose set forth. v,

2. In a machine of the character and for the purpose described, theframe; the rotary inannular, raised bearing-surface; the annular gear onthe drum next one edge of the raised surface; brackets supported by theframe; rolls supported by said brackets and provided on one edge Withthe annular flanges, the main portion of said rolls constitutingbearings for the said raised surface, and the flanges extending over theedge of said raised surface which is opposite the edge next the saidannular gear; the inclined parallel bars supported by the frame and setat right angles to the axis of rotation of the drum; the shaft andbevel-gears supported by one of said inclined bars; and rollerssupported by brackets on the inclined bars, and bearing against theouter face of the annular gear, whereby the said raised surface andannular gear are, during the rotation of the drum, held between the saidrollers and flanges, for the purpose set forth.

3. In a machine of the character described,

and comprising a conveyer, an elevator, a rotary agitating and Washingdrum, and a separating-screen, all connected and operating With relationto one another; the car pivotally supported by a frame and provided withavertical opening in one side; separately-removable horizontal gates orboards in said opening; the vertical horizontally-extending flanges orboards located next said opening and extending outward from the car; thetrough provided with removable gates in one side, and located next theside of the ear eont-aining the opening; the pipe extending fromdirectly beneath the screen to a point directly over the car; and theoutlet-tube extending from a point under the lower end of the screen toa point directly over the trough, for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses.

JOHN J. EVERSON.

Vitnesses:

HENRY WV. VVILLIAMs, A. K. 11001).

